A gas has a volume of 8.78 L at a temperature of 27.77 oC and pressure of 0.35 atm. What is its volume if the pressure changes to 2.40 atm and the temperature changes to 44.36 oC?

During chemistry class, carl performed several lab tests on two white solids. the results of three tests are seen in the data table. based on this data, carl has concluded that substance b must have bonds.

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.